Automatic filament supplier



pl'i1-l4, 1925.y 1,533,260

R. NAlTo ET Al.

' AUTOMATIC FILAMENT SPPLIER Filed April' 18, 1925 STOP REEL 'diameter of sill;

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Patented Apr. 14, 1925,

marras stares PATENT FFICE.

BYOCI NAITO `AND HIDETARG NI'WA, OF ROBE, JAPAN, ASSIGNORS T0 KANEGA- lCHI BOSEK KABUSHK KVI'AISHA, OF TOKYO-FU, JAPAN.

AUTOMATIC .FILAEIENT SUPPLIER.

Application lediApril 18, 1923.

To al?, fio/10m t may concern.'

Be it known that we, rlYooHi NArro and Hmnrnno Ninfa, subjects of the Empire of Japan, residents, respectively, in care of lusiness Department of Kanegafuchi Boschi labushihi Kwaisha, Higashi Shiri lire, liche, Japan, have invented a certain new and useful invention in Automatic Filament Suppliers, of which the following is a speciiication. V j

Our invention relates to an apparatus for supplying iilaments and for automatically controlli the filan'ient supply in silk, reeling machines. ln sill; reelinfi` machines, hitherto in use, the operation of controlling the supply filaments and consequently the thread, has been left to the operators sense of' touch. rlfhe present invention has for its object to improve the previous methods, vby the application of a mechanical means for controllingr the supply of lai'nentswhereby the delicate operations of reeling silk can be performed entirely automatically so that the labour is saved, the production is increased and raw Sill; of' uniform size can be manufactured.

AThe accompanying drawing shows an example ot the apparatus as applied the present invention. Fig. 1 is a sectional view. Fig. 2 is a plan View showing the disposition of the cocoon feeder and lament supplier. Fig. 3 is a side elevation oit' the apparatus diagrammatically showing the principle of operations. F ig. d is a detailed plan view of the adjustable spring.

'According to the present invention a basin (f1) of a special shape, for gathering lilanients of cocoons, is provided apart from the reeling basin (2) in an ordinary silk reeling machine. Boiled cocoons are put in the iront part (3) of the basin (1), and all the cocoons are gathered and the ends ot filaments located by any known means. Said cocoons saturated with hot water, then,

' are removed to the rear part (it) of the basin (1) and the ends of gathered filaments collected together are hung on a hook The rear part (4) of the basin (1) has an inclined bottom (G) and at the end of said bottom an endless belt like feeder (7), provided with small buckets (8) at suitable distances, is supported on drums and 10.),as shown in Fig. 1. rihe cocoons in the rear part (el) gradually slide down, along the inclined bottom (G) by their own Serial No. 632,958.

2. Said filament supplier comprises a set ot toothed plates (1:2) and (13)'1espective1y each having specially shaped teeth as shown in Fig. 2, and these plates are revolved in the same direction by small rope-pulleys at their tops. While the toothed plate (l2) is revolving, the filament of a cocoon is caught by one of its teeth, and subsequently the same filament passes into one oi' the grooves of the revolving toothed plate (13), thereby the filament is shearcd between both toothed plates, and its ond is united with the other filaments running up together to make one thread in the course of reeling.

In Fig. 3, (14) represents a filament collector, usually iliade of porcelain, provided with a fine hole at its centre to permit filament to pass through it. (15) is a lever attached to said filament collector (1li) at one end, and fulcrumed on the frame work by a pivot (16),. (1T) and (18) are push members projecting downwardly from the other end ot the lever (15). (19) and (20) are springs respectively cooperating' with the members (17) and (18). (21) is a spring normally contacting' with the spring is an electric cell., and and (24) are electro-n1agnets is a clutch slidably arranged on the axis (26) and adapted to engage the drum (10) of the cocoon elevator. (See Figs. 1 and 2). The drum (10) is loosely fitted on its axis which always turns. (2T) is a lever for operating the clutch and 'fulcrumed at The lower end ot the lever (27) forms an armature to be attracted bythe electro-magnet (23). (29) is a spiral spring attached to the upper end of the lever (L7). (30) is a lever forming an armature to be attracted by the electro-magnet (24C), and the other end ot said lever is suitably related to a stop mechanism for stopping the reel (notI shown in the drawing).

vand 4.

The spring (20) is fiXed on the frame Work at one end, and is provided With an adjustable support (31) as shown in ligs. 3 Said support (31) is slidably mounted on the spring (20) and is attached at the end of a screw rod (32) adjustably supported on the frame Worx by a nut (33). By turning said nut the support (31) can bev moved backward and foi-Ward on the spring (20) and thereby the tension of the spring (20) can be varied.

The lever (15) is properly balanced so that its right end slightly inclines `down by the Weight ofthe collector (14), and the members (17) and (18) on the left end exert no pressure on the corresponding springs (19)l and (20) While the reeling machine is atnrest. l/Vhen the machine starts, the collector (14) is drawn upwards by the frictional resistance of filaments or silk strand running through its fine hole and the lever v(15) is Vtilted so 'that its left end moves downwards. By said inclination the longer push (1'8)A comes in contact with the spring V(52.0) first, and an'electric circuit is closed between the cell (22) electro-magnet (23), springs (21) (20) and the push (18). The ,electro-magnet (23) is energized and attracts theY lever .(27), thereby the clutch (25) is engaged to the drum (10). Thus the ,cocoon elevator' (7) is started and cocoons elevated thereby are 'fed to the filament supplier oneby one. When the diameter of' the silk strand increases abnormally dueto an excess supply of nlainents, the frictional resistance on .the collector (141) increases, so that the lever (15) is further' tilted. This causes the depression of the spring (20) by the member' (18) and the former moves voff the spring (21). rllhe circuit is thereby opened, the cocoon elevator is Astopped and 'the supply .of filaments vis automatically suspended. On the contrarv,

when the `silk strand again becomes normal owing to the reeling off or the breakage in ,the course or" reeling, the resistance on the collector (.141) diminishes and the spring again comes in contact With spring (21', so that the electric circuit is closed again, the cocoon elevator is started, and filaments are supplied, rllhus the cocoon eederis operated or stopped according to variations in thediameter of' the silk strand in the course of reeling and the sensitiveness of control of the feed mechanism may be varied as desired by properly adjusting the support (31) of the spring (20).

ln case a knob or any other obstacle on the silk stra-nd is obstructed by the collector (14) the right end of the lever (15) is further drawn upwards and the shorter projection on the left arm of said lever contacts with the spring (19), so that the circuit of the cell (22), projection (1l),l spring (19) and the electro-magnet (24.) is closed the last mentioned electro-magnet thereby attracts the .armature oi' lever (30) and the Winding oi. the reel is stopped at once by means of the stop inechanisin related to said lever.

`We claim:-

1. ln combination, means for elevating cocoons one by one, a filament supplier, a pivoted lever, means on said lever for engaging the strand produced by the filament supplier and actuated according` to the degree of friction exerted thereon by said strand, means for driving the cocoon elevating means, electro-magnetically controlled means for clutching the driving lmeans with the 'elevating means,V an electric `circuit including the electrc-iiiagnetically controlled means, and a circuit ycontroller interposed in said circuit and actuated by said lever.

2. An apparatus as claimed in claim '1 character-ized by the provision of' an electromagnetically operated reel stopping device interposed in said circuit, and means actu ated by the lever for controlling the stopping device.

3. in apparatus as claimed in claim 1 characterized in that said circuit controller includesadjustable means for varying the response or said lever to varying resistance ofthe strand.

ln testimony whereof We have affixed our signatures in presence of tvvo Witnesses. 

